23239499538 has 16 divisors (see below), whose sum is σ = 46608471360. Its totient is φ = 7724921136.

The previous prime is 23239499513. The next prime is 23239499551. The reversal of 23239499538 is 83599493232.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5392345 + ... + 5396652.

It is an arithmetic number, because the mean of its divisors is an integer number (2913029460).

Almost surely, 2^23239499538 is an apocalyptic number.

23239499538 is an abundant number, since it is smaller than the sum of its proper divisors (23368971822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23239499538 is a wasteful number, since it uses less digits than its factorization.

23239499538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10789361.

The product of its digits is 12597120, while the sum is 57.

The spelling of 23239499538 in words is "twenty-three billion, two hundred thirty-nine million, four hundred ninety-nine thousand, five hundred thirty-eight".